The Silent Disco: Jamming To The Quiet Beat

9/9/2012 10:30PM

Zoos from San Francisco to London are pulling in visitors by offering the "silent disco". Zoo-goers jam to their favorite beats while wearing headphones, and preserve the natural sleep patterns of the zoo animals. WSJ's Shirley Wang reports from London.

This transcript has been automatically generated and may not be 100% accurate.

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